Polypoidal Choroidal Vasculopathy: Evaluation Based on 3-Dimensional Reconstruction of OCT Angiography.

OBJECTIVE: Three-dimensional (3D) reconstruction using swept-source OCT angiography (SS-OCTA) can provide insights into the nature and structure of polypoidal choroidal vasculopathy (PCV) and its component parts, the polypoidal lesion (PL) and the branching neovascular network (BNN). This study aims to describe novel observations of PCV using 3D reconstruction of SS-OCTA, and to compare these observations with similar images of type I macular neovascularization (MNV) typical neovascular age-related macular degeneration (nAMD). DESIGN: Clinical case series. SUBJECTS: Patients with PCV in either eye from clinical studies conducted in a tertiary retina center. METHODS: Images with prespecified SS-OCTA imaging protocol were obtained and reconstructed in 3D. Forty neovascularization lesions (30 PCV and 10 typical nAMD) based on SS-OCTA were analyzed. MAIN OUTCOME MEASURES: The following 3 specific features were evaluated: (1) the pattern of flow signal within the PLs as either homogenous or showing internal vascular architecture; (2) the configuration of the BNN as hypermature, mature, or immature; and (3) the spatial arrangement of the PLs in relation to the BNN. Comparisons were made between PCV and typical nAMD. RESULTS: All PLs exhibited internal vascular architecture in the form of coil-like loops and none exhibited homogenous flow. Small focal nodules were present within this internal vascular architecture in 70% of PLs. Branching neovascular networks exhibited a hypermature/mature configuration (100 vs. 50%, P < 0.01) and were associated with thicker choroid compared with typical nAMD type 1 MNV (238.7 ± 104.3 vs. 155.6 ± 49.2, P = 0.02). The BNN and PL were located at distinct anteroposterior planes in 81% of the eyes. CONCLUSIONS: We identified proliferating vasculature in both the PL and the BNN. Comparison of the configuration suggests that the BNN represents a more chronic and inactive lesion than the PL. FINANCIAL DISCLOSURE(S): Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.

Predictors for Weight Loss in Head and Neck Cancer Patients Undergoing Radiotherapy: A Systematic Review.

BACKGROUND: Head and neck cancer patients are at high risk of weight loss because of their disease process and the treatment of their disease. Recognition of predictors for weight loss may be able to give proactive or reactive nutritional treatment to patients at risk. OBJECTIVE: The aim of this study is to identify the independent risk factors for head and neck cancer patients developing weight loss undergoing radiotherapy. METHODS: A comprehensive literature search was performed on January 2014. Articles reporting studies of the predictors for weight loss in head and neck cancer patients undergoing radiotherapy were included. These studies were published between 1982 and 2014. Study quality was assessed using a modified quality assessment tool that was designed previously for an observational study. The effects of studies were combined with the study quality score using a best-evidence synthesis model. RESULTS: Twenty-two observational studies involving 6159 patients were included. There was strong evidence for 3 predictors, including advanced tumor stage, a higher body mass index before treatment, and the use of concurrent chemoradiotherapy. We also identified 8 moderate evidence predictors and 30 limited evidence predictors. CONCLUSION: The scientific literature to date indicates that patients with advanced tumor stage, or a higher body mass index before treatment, or the use of concurrent chemotherapy are at high risk to have weight loss during radiotherapy. IMPLICATIONS FOR PRACTICE: These data provide evidence to guide healthcare professionals in admitting patients who will have weight loss and choosing an optimal prophylactic strategy.

Continuity of Care for Older Adults with Chronic Illness in China: An Exploratory Study.

OBJECTIVE: To explore nurses' understanding of continuity of care and existing problems in implementation of continuity of care for Chinese elders with chronic illnesses. DESIGN AND SAMPLE: Cross-sectional survey and semi-structured interview were performed on 15 nurses and older patients and 1,902 older patients between July 2010 and February 2011. MEASURES: Semi-structured interview guideline and four-section scale were used. RESULTS: The interviews showed nurses lacked knowledge of continuity of care, and nurses from small towns or rural areas had less understanding of continuity of care and discharge planning than nurses from central cities. Significant differences were found among patients located in referred areas in selection of medical institutions for treatment, suggesting older adults were more likely to choose general hospitals for treatment. Self-reported surveys demonstrated more than 70% of hospitalized elders chose community hospitals for further recovery after discharge from general hospitals. CONCLUSIONS: Chinese nurses lack knowledge of continuity of care, and significant discontinuity exists between health care provided by general hospitals, community hospitals and other institutions for elders. A further model for the development of continuity of care should be established that addresses older patients' demands and current barriers in China.

Clinical determinants of weight loss in patients with esophageal carcinoma during radiotherapy: a prospective longitudinal view.

PURPOSE: The prevalence of weight loss in esophageal carcinoma patients is high and associated with impairment of physical function, increased psychological distress and low quality of life. It is not known which factors may contribute to weight loss in patients with esophageal carcinoma during radiotherapy in China. The objective of this study was to identify the associated demographic and clinical factors influencing weight loss. METHODS: We evaluated 159 esophageal carcinoma patients between August 2010 and August 2013 in a cross- sectional, descriptive study. Patient characteristics, tumor and treatment details, psychological status, adverse effects, and dietary intake were evaluated at baseline and during radiotherapy. A multivariate logistic regression analyss was performed to identify the potential factors leading to weight loss. RESULTS: 64 (40.3%) patients had weight loss ≥ 5% during radiotherapy. According to logistic regression analysis, depression, esophagitis, and loss of appetite were adverse factors linked to weight loss. Dietary counseling, early stage disease and total energy intake ≥ 1,441.3 (kcal/d) were protective factors. CONCLUSIONS: It was found that dietary counseling, TNM stage, total energy intake, depression, esophagitis, and loss of appetite were the most important factors for weight loss. The results underline the importance of maintaining energy intake and providing dietary advice in EC patients during RT. At the same time, by identifying associated factors, medical staff can provide appropriate medical care to reduce weight loss. Further studies should determine the effect of these factors on weight loss and propose a predictive model.